Open Mitaka development
Open Mitaka development

Bump preversion to mark the start of the Mitaka development branch.
The liberty release branch will be cut from the previous commit.

Change-Id: I3dea067f7e610f551376555d54e23e4ab440c08b

vponomaryov/manila,scality/manila,bswartz/manila,scality/manila,bswartz/manila,NetApp/manila,openstack/manila,vponomaryov/manila,openstack/manila,NetApp/manila